GSK3β/shaggy mediates patterning along the animal-vegetal axis of the sea urchin embryo

Abstract

In the sea urchin embryo, the animal-vegetal axis is defined before fertilization and different embryonic territories are established along this axis by mechanisms which are largely unknown. Significantly, the boundaries of these territories can be shifted by treatment with various reagents including zinc and lithium. We have isolated and characterized a… (More)

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